How do I get 'API Path', 'Client ID' and 'Access Token' credentials?
1. From your BigCommerce Admin Panel, go to "Advanced Settings"->"API Accounts".
2. Click on 'Create API Account'
3. Enter a desired name and provide the following minimum scopes:
BigCommerce Store Manager Mobile App Oauth Scopes
4. Copy API Path & Save.
5. Copy 'Client ID' and 'Access Token' on next screen